class CharType{
  //通用的字符
  static const int CHAR_TYPE_GENERAL = 0;
  //泰语字符
  static const int CHAR_TYPE_TAIYU = 1;
  //阿拉伯语
  static const int CHAR_TYPE_ARABIC = 2;
  //Emoji表情
  static const int CHAR_TYPE_EMOJI = 3;
}